Home / 451,445.20-677,167.80-402,456.40

Finding the Fourth Proportional to 451,445.20, 677,167.80 and 402,456.40

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Solution

The fourth proportional to 451,445.20, 677,167.80 and 402,456.40 is: 603,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,445.20 : 677,167.80 = 402,456.40 : x
  2. Step 2: Convert to fraction form
    451,445.20/677,167.80 = 402,456.40/x
  3. Step 3: Cross multiply
    451,445.20x = 677,167.80 × 402,456.40
  4. Step 4: Simplify right side
    451,445.20x = 272,530,514,983.92
  5. Step 5: Solve for x
    x = 272,530,514,983.92/451,445.20
  6. Step 6: Final answer
    x = 603,684.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.